diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index f0ebcc7e2871..4377b3673da9 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -441,7 +441,6 @@ struct tcp_out_options {
 	u8 ws;			/* window scale, 0 to disable */
 	u8 num_accecn_fields:7,	/* number of AccECN fields needed */
 	   use_synack_ecn_bytes:1; /* Use synack_ecn_bytes or not */
-	u8 hash_size;		/* bytes in hash_location */
 	__u8 *hash_location;	/* temporary pointer, overloaded */
 	__u32 tsval, tsecr;	/* need to include OPTION_TS */
 	struct tcp_fastopen_cookie *fastopen_cookie;	/* Fast open cookie */